Heavy guns



(No Model) 10 Sheets--Shget 1. O.H.-MURRAY. H MEANS FOR CONTROLLINGHYDRAULIC APPARATUS FOR TRAINING HEAVY GUNS. A

ted'May 8, 1888.- I

.10 Sheets sheet 2.

(No Model.)

. 0. HJMURRAY. MEANS FOR CONTROLLING HYDRAULIC APPARATUS FOR TRAININGHEAVY GUNS.

No. 382,377. Pmnt dm y 8, 1888 (N0 Mom. l0 Shets--She et 3.

0,115 MURRAY.

MEANSFOR CONTROLLING HYDRAULIC APPARATUS'FOB, TRAINING 'HBAVY GUNS. No.382,377. Patented May '8, 1888.

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10 SheetsSheet 4.

(No Model.)

0. H. MURRAY.1 MBANSTOR OONTROLLING HYDRAULIC APPARATUS FOR TRAINING--HEAVY GUNS.

No 382,377. PatentedMay 8, 1888 l l l Witnemrem V/CQM.

(NoModeL) 10 Sheets-Sheet 5.

A O. HIMURRAY.

MEANS FOR CONTROLLING HYDRAULIC APPARATUS FOR TRAINING HEAVY GUNS.

No. 382.377". "Patehted May 8, 1888.

W 4 I I I (No Model.) 1O Sheets-Sheet 6 O. H. MURRAY.

, MEANS FOR CONTROLLING HYDRAULIC APPARATUS FOR TRAINING I HEAVY GUNS.

188882 77. Patented May 8, 1888.

10'SheetsSheet 7.

(N0 Modem Z 0. H. MURRAY. MEANS FOR CONTROLLING HYDRAULIC APPARATUSTOR'TRAINING .HEAVYGUNISM U Patented -May 8', 1 888."

(No Model.) 4 10 sheets sheet s.

- MURRAY. MEANS ,FOR CONTROLLING HYDRAULIO APPARATUS FOR TRAINING HEAVYGUNS A Patentd May 8, 1888.-

f0 Sheets-Shed 9.

(No Model.)

. 0Q H. MURRAY. MEANS FOR GONTROLLING HYDRAULIC APPARATUS FOR TRAININGHEAVY GUNS.

Patented May 8, 1888.

(No Model.) I 10 SheetsSheet 10.

0. H. MURRAY. MEANS FOR CONTROLLING HYDRAULIG APPARATUS FOR TRAININGHEAVY GUNS.

Patented May 8, 1888.-

Tiaras UNlTE ares rricn,

CHARLES MURRAY, or NEWCASTLE-UPON-TYNE, ENGLAND, assrenon.

TO w. e. ARMSTRONG, MrronnLL a 00., (LIMITED,) or SAME PLACE.

MEANS FOR CONTROLLING HYDRAULIC APPARATUS FOR TRAINING HEAVY GUNS.

SPECIFICATION forming part of Letters Patent No. 382,377, dated May8.1888.

Applicntion'flled June 15, 1887. Serial No, 241,380; (No model.)Patented in Italy December 31, 1886, No. 20,755.

To all whom it may concern;

Be itknown that l, CHARLES HESRY Moe RAY, of the Elswick XVorks,Newcastle-upon Tyne, England, engineer, a subject of the 5 Queen'ofGreat Britain, have invented certain 7 7 engines employed-to train heavyguns and to turn turrets and turn-tables are too large-tozo be moved byhand-power, and it is usual to apply a hydraulic reversing-cylinder tomove them by power, and to work this reversingcylinder through a valvemoved byhand made so that the'movement of the reversing-cylindercounteracts the movement made by hand, with theresult that the engineruns at whatever speed corresponds with any opening given to thvgvalve,and it continues to so run until the valves are closed again by handthrough the medium of the hydraulic reversing-cylinder.

I make the further improvement and cause the engine as it revolves toclose its own working-valves, so that it shall be necessary tocontinually open them to keep the engine running. This I do in thefollowing way: The reversing-cylinder has a piston-rod projecting wellout of the cylinder and screwed at its outer end for a length somewhatmore than thelength of the stroke of the cylinden A large nut is fittedto this screw made in the form of a pinion, and into the pinion thusformed is geareda wheel driven by the engine. The working-valves of theengine are connected freely to this nut. Fart-her along the screw is asmaller nut, also made in the form of a pinion, and gearing into itthere is a pinion which can be turned by hand. A small D-valve isconnected freely to this smaller 50 nut, and this D-valve suppliespressure to either'side of the reversing-cylinder. The action is asfollows: The small pinion nut 1s worked along the screw by turning thehandwheel. This action opens the little D-valve andsupplies water to oneend of the revers- .5 ing=cylinder. The reversing IJIStOII and rodtherefore make a partial stroke, which shuts the small D'valve, thusstopping further action and opens all the engine-valves and makes theengine run. The running ofthe engine works the large pinion-nut alongthe screw, and, shutting off the slide-valves, brings the engine torest. When the hand-gear is continually turned, the engine is keptcontinually running at a speed which depends upon the 6 amount of leadat which thehand-wheelp1n1onnutis keptin advance of the enginepinion-nut. Furthermore, to avoid the necessity of turning thehand-wheelfor along time, I arrange to I clutch the hand-wheelpinion-nut to the engine pinion-nut when-so set that the desired speedis attained. Then that speed will continue till the engine has run itsfull course, which occurs when the reversing cylinder gets to the endofits stroke. The advantages in this arrangement are thatit is notnecessary tofit separate stop-gear, as at present, as the engine canonly travel as 'far'as the stroke of the reversing cylinder determines.It is also unnecessary to fit separate indicatorgear to show theposition ofthe turret, as that is known from the number of revolutionsmade by-the hand-wheel The arrangement gives much greater facility intraining through the very small angle nec essary for laying the guns ondistant ob ects, 8 because a small movement can be given to-thehand-wheel with the certainty that a corresponding movement will be madeby the engine, and no more, whereas with the present arrangements thereis hardly time to observe go" that the turret has commenced to movebefore it has overshot the intended mark, and at the best the attentionis taken up with stopping 'the training at the very instant thatthesights,

are passing over the target. 9 5

Figure 1 of the drawings hereunto annexed is a plan view, partly insection, of a revoly v ing turret with two" guns mounted ,upon 1t, someparts fully represented in other figures being omitted, or shown inoutline only. Fig; roo

arm of which is by a rod, coupled to the extremity of a lever, O", whichturns on a fulcrum at 0. The lever at its central part embraces a ring,0 which lies within a-groove formed around a clutch, P, as shown at Fig.3. The ring 0 has pins 0 projecting from its opposite sides; They enterholes in the lever 0 so that when the lever is rocked it carries thering O and' clutch P along with it. The clutch P is coned at one end,and when shift endwise ean'be' made" to engage with a correspondingconical recess in the side of the wheel The clutch P can be shiftedendwise along a shaft, P', but has to revolve with it by feathers Pprojecting from the shaft entering grooves in its boss. at one end atoothed wheel, P, which gears with the teeth of the pinion-nut O. Theopposite end of the shaft P passes loosely into the hollow axis of thewheels H and M. In this way when the toothed wheel H is by the clutch Plocked to the wheel P so that it has to revolve with it, the pinion-nutD must revolve with the pinion-nut 0 whenever this pinion is revolved.

The action is therefore as follows: By turning the hand-wheel at thesighting-station the pinion D is turned and its nut runs along thescrewed piston-rod and by the lever D opens the auxiliary valve G. Thisvalve admits water to'the starting and reversing cylinder, which thusmakes a portion of a stroke and opens the starting and reversing valvesof the engines. As soon as the engines run they work the trains of gearK K, which revolve *th'e piDiOIF-HTH'FG C. These rinr'along the screwedpiston-rods and act upon the starting and reversing valves E, bringingthem to the stop position again. Thus to keep the engines running it isnecessary to continually turn the The shaft 1? has upon it hand-wheels Mat the sighting-station, but, if required, when the desired speed ofengines is attained, the clamp-gear can be thrown in so that onepinion-nutturns the other, as'

above explained.

Having nbw particularly described and ascertained the nature of my saidinvention and in what manner the same is to'be performed, I declare thatwhat I claim is 1. The combination, consisting of a turret orgun-platform, a hydraulic engine geared therewith, the starting-valve ofthe said engine, a hydraulic cylinder, piston, and rod coupled with thestarting-valve. the controlling-valve of this hydraulic cylinder, t enut on the piston-rod and coupled with the controlling-valve, which nutcan be turned by hand-gear, and the other nuton the rod coupled with thestarting-valve of the engine and also geared with the engine, the wholecombined and operating substantially as described.

2. The combination, consisting of a turret or gun-platform, a hydraulicengine geared therewith, the starting-valve .of the said cngine, ahydraulic cylinder, piston, and rod coupled with the starting-valve, thecontrol ling-valve of this hydraulic cylinder, the nut on the piston-rodand coupled with the controlling-valve, the hand-gear for turning thisnut from a-distance, the other nut on the rod coupled with thestarting-valve of the engine and also geared with the engine, and theclutch and its gear for locking the nuts together, the whole combinedand operating substantially as described.

Ii. MURRAY.

, \Vitnesses:

T. PURVIS,

WM. JOHN GREY,

Notary Public.

